### ANALISIS PENGUASAAN SISWA DALAM MENYELESAIKAN SOAL PERBANDINGAN TRIGONOMETRI PADA KELAS X SMAN 2 LENGAYANG

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**SUMMARY**

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This research is motivated because many students make mistakes in solving the problem of trigonometry comparison, besides the students' mastery level has not been optimally seen from the students' difficulties in solving the problems they do and the students' learning outcomes are still low. This study aims to describe the percentage of mastery level of students of class X SMAN 2 Lengayang in solving the problem of trigonometric comparison based on cognitive domains of Bloom's Taxonomy and based on indicators on trigonometric comparison materials, identifying difficulties experienced by students in solving trigonometric comparative problems, and finding anything Student learning difficulties.

The type of research is descriptive research. the research sample is one class taken with purposive sampling technique based on the odd semester test value of mathematics subjects that have the lowest average. Instruments used in this study are students' mastery tests and questionnaires questionnaires learning difficulties. The results showed that the percentage of students' mastery level based on the cognitive domain of Bloom's Taxonomy at the recall level (C1) of the majority of students are in the capable category of 82.75%, at the level of understanding (C2) (C3) most of the students are in the category of incapability that is equal to 86,2% and at cognitive level analyze (C4) all student is in partially capable category that is 100%.

Based on the results of the research, it can be said that the level of mastery of students in completing the problem of comparison trigonometry in class X SMAN 2 Lengayang average is in the category of moderate mastery of 68.96%. For that need to be improved again the method of learning by the right teacher on trigonometric learning.

**Key word : Mastery of Students, Learning Difficulties, the Causes of Learning Difficulties in Mathematics.**

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